Python:切片deque

Question

如何将a切片deque到某个部分,像list_numbers[:5]？

我的梦想代码如下:

from collections import deque
deque_num = deque([1, 2, 3])
deque_sectioned = deque_num[:1]

Answer 1

你可以使用islice:

from itertools import islice
new_deque = deque(islice(old_deque, 5))